NDLI: Investigation of the interaction of sodium nitrite with hydrogen peroxide in aqueous solutions by the chemiluminescence method

Content Provider	Springer Nature Link
Author	Starodubtseva, M. N. Cherenkevich, S. N. Semenkova, G. N.
Copyright Year	1999
Abstract	An investigation is made of the chemiluminescence (luminol-dependent and spontaneous) of aqueous solutions of NaNO$_{2}$ and H$_{2}$O$_{2}$ in the pH range of 4.0–9.0. In the presence of luminol at pH>7 the initiator of luminescence is H$_{2}$O$_{2}$. At pH<7 the luminescence revealed seems to be initiated by peroxynitric acid (HOONO) produced by the interaction of NaNO$_{2}$ with H$_{2}$O$_{2}$ in weakly acid and acid solutions. Cysteine added to the solution prior to introducing H$_{2}$O$_{2}$ completely suppresses luminescence development in the pH range investigated. Moreover, cysteine quenches the luminescence already developed. Mannite and ethanol do not exert a substantial influence on the development of the luminescence. The solution of NaNO$_{2}$ and H$_{2}$O$_{2}$ is also characterized by spontaneous chemiluminescence, the intensity of which is one-two orders of magnitude lower than that of the luminol-dependent chemiluminescence. The intensity of the spontaneous chemiluminescence of the solutions of NaNO$_{2}$ and H$_{2}$O attains its maximum in the pH region of 6.5 to 7.0. It is assumed that the revealed spontaneous luminescence of the solutions of NaNO$_{2}$ and H$_{2}$O$_{2}$ is also attributable to formation of peroxynitrit acid in an activated state (HOONO$^{*}$).
Starting Page	473
Ending Page	476
Page Count	4
File Format	PDF
ISSN	00219037
Journal	Journal of Applied Spectroscopy
Volume Number	66
Issue Number	3
e-ISSN	15738647
Language	English
Publisher	Springer US
Publisher Date	1999-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	luminol-dependent and spontaneous chemiluminescence hydrogen peroxide nitrite peroxynitric acid Analytical Chemistry Atomic and Molecular Structure and Spectra
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Condensed Matter Physics

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